Notification 0X0302 - Cardholder Selection Request (Emv Only) - Magtek mDynamo Programmer's Manual

6 - Notification Messages Sent from Device to Host (Extended Notifications Only)

6.2.3 Notification 0x0302 - Cardholder Selection Request (EMV Only)

This notification is used to inform the host that a cardholder selection is needed before the device can
continue processing the current transaction. The host should prompt the cardholder to select an item from
the menu, then send Extended Command 0x0302 - Cardholder Selection Result to inform the device
that the transaction can proceed with the selected result.
Offset Field Name
Selection
0
Type
1 Timeout
2 Menu Items
mDynamo| OEM Secure Card Reader Authenticator | Programmer's Manual (COMMANDS)
This field specifies what kind of selection request this is:
0x00 = Application Selection
0x01 = Language Selection
Specifies the maximum time, in seconds, allowed to complete the selection
process. If this time is exceeded, the host should send Extended Command
0x0302 - Cardholder Selection Result with the Selection Status field set to
0x02 (Cardholder Selection Request aborted, timeout) after which the
transaction is aborted and an appropriate Transaction Status is available.
Value 0 (Cardholder Selection Request completed) is not allowed in this case.
This field is variable length and is a collection of null-terminated strings
(maximum 17 strings). The maximum length of each string is 20 characters,
not including a Line Feed (0x0A) character that may be in the string. The
last string may not have the Line Feed character.
The first string is a title and should not be considered for selection.
It is expected that the host displays the menu items to the cardholder, then,
after the cardholder makes a selection, call Extended Command 0x0302 -
Cardholder Selection Result to return the number of the item the cardholder
selected, which should be between 1 and the number of menu selection items
being displayed. The first item, 0, is the title only.
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Value